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Check for NULL before dereferencing newly allocated memory

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Fixes https://github.com/libsdl-org/SDL/issues/8289

(cherry picked from commit 70a1bc69739016884a22abe6bf86f8a5deba29ef)
This commit is contained in:
Sam Lantinga 2023-09-24 17:17:49 -07:00
parent 834e8898b9
commit 27f2df2292
1 changed files with 1 additions and 1 deletions
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src/joystick/linux/SDL_sysjoystick.c
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@ -1752,11 +1752,11 @@ static SDL_bool LINUX_JoystickGetGamepadMapping(int device_index, SDL_GamepadMap
/* We temporarily open the device to check how it's configured. Make
a fake SDL_Joystick object to do so. */
joystick = (SDL_Joystick *)SDL_calloc(sizeof(*joystick), 1);
joystick->magic = &SDL_joystick_magic;
if (joystick == NULL) {
SDL_OutOfMemory();
return SDL_FALSE;
}
joystick->magic = &SDL_joystick_magic;
SDL_memcpy(&joystick->guid, &item->guid, sizeof(item->guid));
joystick->hwdata = (struct joystick_hwdata *)